feat(rawcli): colorized breadcrumb prompt

Color-code the prompt so the session state reads at a glance, using the
trace formatter's palette so prompt and trace look like one UI:

  [ raw / hf / NTAG213 / 0x ]
   dim  ^bold ^cyan  ^bold-green  ^yellow(hex) | magenta(binary)  dim

- bold `raw`; cyan RF field; bold-green identified transponder; entry
  mode yellow for hex, magenta for binary (so the base is obvious and
  flips color on Ctrl-/); dim brackets/separators.
- session.colored_breadcrumb() returns the ANSI form; breadcrumb() stays
  plain (stripping the ANSI yields it — asserted). Prompt message renders
  it via ANSI().

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

pm3py/cli/rawcli/app.py

@@ -195,7 +195,7 @@ def run(port=None) -> int:
     )
 
     def message():
-        return state.breadcrumb() + " "
+        return ANSI(state.colored_breadcrumb() + " ")
 
     with patch_stdout():
         while True:

pm3py/cli/rawcli/session.py

@@ -8,6 +8,15 @@ from typing import Any
 HEX = "hex"
 BIN = "bin"
 
+# ANSI palette aligned with pm3py/trace/format.py so the prompt reads as part of the same UI
+_DIM = "\033[2m"
+_CYAN = "\033[36m"
+_YELLOW = "\033[33m"
+_MAGENTA = "\033[35m"
+_BGREEN = "\033[1;32m"
+_BOLD = "\033[1m"
+_RESET = "\033[0m"
+
 
 class RawSession:
     """Mutable rawcli session state.
@@ -43,3 +52,17 @@ class RawSession:
             segments.append(self.transponder)
         segments.append(self.entry_prefix)
         return "[" + " / ".join(segments) + "]"
+
+    def colored_breadcrumb(self) -> str:
+        """The breadcrumb with ANSI color (same palette as the trace): bold ``raw``, cyan field,
+        bold-green identified tag, and the entry mode in yellow (hex) or magenta (binary) so the
+        current base is obvious at a glance. Stripping the ANSI yields :meth:`breadcrumb`."""
+        segments = [f"{_BOLD}raw{_RESET}"]
+        if self.field:
+            segments.append(f"{_CYAN}{self.field}{_RESET}")
+        if self.transponder:
+            segments.append(f"{_BGREEN}{self.transponder}{_RESET}")
+        mode_color = _YELLOW if self.entry_mode == HEX else _MAGENTA
+        segments.append(f"{mode_color}{self.entry_prefix}{_RESET}")
+        sep = f"{_DIM} / {_RESET}"
+        return f"{_DIM}[{_RESET}" + sep.join(segments) + f"{_DIM}]{_RESET}"

tests/test_rawcli.py

@@ -46,6 +46,18 @@ class TestBreadcrumb:
         s.field = "lf"
         assert s.breadcrumb() == "[raw / lf / 0x]"
 
+    def test_colored_matches_plain(self):
+        s = RawSession()
+        s.field, s.transponder = "hf", "NTAG213"
+        assert "\x1b[" in s.colored_breadcrumb()               # actually colored
+        assert _plain(s.colored_breadcrumb()) == s.breadcrumb()  # same content, ANSI stripped
+
+    def test_colored_mode_color_changes(self):
+        s = RawSession()
+        hex_prompt = s.colored_breadcrumb()
+        s.toggle_entry_mode()
+        assert hex_prompt != s.colored_breadcrumb()            # hex vs binary colored differently
+
 
 class TestTraceView:
     def test_command_and_response_lines(self):